Will I get a better signal if I use a different antenna?

[Johnn]

I have not even got the radar box yet  , Just Intrested :)

If so what antenna would I need?

Thanks

[AirNav Support]

A preamp or an external antenna will definitely help.
Have a look at the current thread at:

http://www.airnavsystems.com/forum/index.php?topic=1302.0

Also the screenshot forum will have a few examples of before and after shots.